Description Royal Posture back support belt gently realigns your spine to improve posture and supports your neck and back to relieve pain. The posture corrector brace is made of a breathable neoprene, nylon and cotton blend and fits comfortably under your clothes. Energizing Posture Support Aligns your spine & Improves Posture Great For Men and Women 70% Neoprene & 30% Polyester Includes 1 Royal Posture Back Support Brace Shoulder straps should pull back slightly on shoulder area.